Stream Team Statistics

This summer, Watershed Education Network staff, volunteers and interns have been participating in weekly Stream Team trips around the Missoula area. At each stream site, the group collects water quality data that includes dissolved oxygen content, air and water temperature, pH and macroinvertebrate group taxa scores on the Pollution Tolerance Index. Pictures and data from some of our summer Stream Team adventures follow.

Rattlesnake Creek- 6/16/2010- 1:40 P.M.
Site: Tom Greene
Dissolved Oxygen: 10.5 mg/L
Air Temp: 11.5 degrees C
pH: 7.4
Macroinvertebrate count:
Mayflies (155)
Stoneflies (7)
Caddisflies (4)
Midges (4)
Snipeflies (1)
Aquatic Worms (3)
Leaches (2)
Black Fly Larvae (1)
Pollution Tolerance Index (PTI) Score: 21 (Potentially Good Water Quality)

Clark Fork River
- 6/23/10- 2:25 PM
Site: Easy Street Access
Dissolved Oxygen: 11 mg/L
Air Temp: 22 degrees C
pH: 7.7
* Water too high to sample aquatic macroinverts

Grant Creek- 7/21/2010- 1:30 PM
Site: Bench Bridge
Dissolved Oxygen: 11.5 mg/L
Air Temp: 28 degrees C
pH: 7.4
Macroinvertebrate count:
Mayflies (267)
Stoneflies (8)
Caddisflies (17)
Craneflies(1)
Aquatic Worms (4)
Flatworms (3)
Pollution Tolerance Index (PTI) Score: 14 (Potentially Fair Water Quality)


If you are in the Missoula Area and would like to volunteer with our Summer Stream Team, please email water@montanawatershed.org and check out our calendar for dates/times.